Shell based on welding reinforcement structure

Abstract

The utility model discloses a shell based on a welding reinforcement structure, which comprises a shell, an explosion-proof hole is formed in the shell, and a ventilation assembly is arranged at the lower end of the inner side of the shell; the anti-explosion valve plate is fixed on the inner side of the anti-explosion hole through welding; the reinforcing block is arranged on the edge of the lower surface of the anti-explosion valve plate, and one end of the reinforcing block is matched with the anti-explosion hole so as to reinforce during welding; according to the explosion-proof valve block, the reinforcing block is arranged, the situation that when the explosion-proof valve block is directly welded to an explosion-proof hole of a steel shell, the explosion-proof valve block or the shell is punctured due to high welding energy is avoided, the strength of the welding position can be well improved, the puncture phenomenon is reduced, and the firmness after welding is guaranteed; ventilation of the lower end of the inner side of the shell is guaranteed, and local heat concentration of the inner side of the shell is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of shell based on welding reinforcing structure. BACKGROUND

[0002] Due to the production requirements of new energy, high capacity density, solid and durable steel shell becomes a good choice for the production of new energy battery. The steel shell is hard and not easy to break and deform, which helps to maintain the shape of the battery and reduce the possibility of internal short circuit. However, the density of the steel shell is much greater than that of the traditional aluminum shell. The thickness of the steel shell is generally thin, and the explosion-proof valve also needs to be welded with the steel shell. The explosion-proof valve is also nickel-plated steel, which is also thin. It is difficult to produce because it cannot be punched. When welding the explosion-proof valve and the steel shell, the welding energy is high, and the thin sheet is easy to be penetrated. The welding connection effect is not good. Therefore, we propose a shell based on welding reinforcing structure. UTILITY MODEL CONTENT

[0003] The utility model aims to provide a shell based on welding reinforcing structure to solve the problems raised in the background art.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a shell based on welding reinforcing structure, comprising:

[0005] The shell has an explosion-proof hole formed therein, and a ventilation assembly is provided on the inner lower end of the shell.

[0006] The explosion-proof valve piece is fixed inside the explosion-proof hole by welding.

[0007] The reinforcing block is arranged on the lower surface edge of the explosion-proof valve piece, and one end of the reinforcing block cooperates with the explosion-proof hole to reinforce during welding.

[0008] Preferably, a groove for pressure containment is formed by recessing the middle part of the inner side of the explosion-proof valve piece downward.

[0009] Preferably, the reinforcing block is annular.

[0010] Preferably, the lower surface of the reinforcing block has a chamfer.

[0011] Preferably, the ventilation assembly includes a first support plate, a connecting block, and a through hole. The first support plate is arranged on the inner lower end of the shell. The first support plate has connecting blocks connected to the shell at both ends. The first support plate and the bottom surface of the shell have a ventilation channel. The inner side of the first support plate has a through hole.

[0012] Preferably, the lower surface of the first support plate is provided with a second support plate, and the second support plate is in the shape of "S".

[0013] Preferably, a cavity is formed in the connecting block along its axial direction.

[0014] Preferably, the material of the shell is steel.

[0015] Compared with the prior art, the utility model has the beneficial effects that:

[0016] The reinforcing block is arranged, welding energy is high when the explosion-proof valve plate is directly welded to the explosion-proof hole of the steel shell, and the explosion-proof valve plate or the shell is broken, the device can improve the strength of the welding position, reduce the breakdown phenomenon, guarantee the firmness after welding, the ventilation assembly is arranged, the ventilation of the lower end of the inner side of the shell is guaranteed, local heat accumulation of the inner side of the shell is avoided, heat is uniformly distributed, the strength of the lower end of the shell is improved, and the safety of the battery in the inner side of the shell is guaranteed. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the utility model;

[0018] Figure 2 It is a shell cross-section structural schematic diagram of the utility model;

[0019] Figure 3 It is a reinforcing block structural schematic diagram of the utility model;

[0020] Figure 4 It is a shell cross-section structural schematic diagram of the utility model.

[0021] In the drawing: 1, shell;2, ventilation assembly;201, first support plate;202, connecting block;203, second support plate;204, through hole;3, explosion-proof hole;4, explosion-proof valve plate;401, groove;5, reinforcing block;501, chamfer. DETAILED DESCRIPTION

[0022] The technical scheme in the embodiments of the utility model will be clearly and completely described below in combination with the drawings in the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0023] Please refer to Figures 1-4 The utility model provides a kind of technical scheme: a shell based on welding reinforcing structure, comprising:

[0024] Shell 1 is provided with explosion-proof hole 3 on shell 1, and the lower end of the inner side of shell 1 has ventilation assembly 2, to uniformly distribute heat in the inner side of shell 1, avoid local heat concentration, and improve the strength of the lower end of shell 1, reduce the risk of breakdown of shell 1 bottom;

[0025] The explosion-proof valve sheet 4 is fixed in the explosion-proof hole 3 by welding;

[0026] The reinforcing block 5 is arranged at the lower surface edge of the explosion-proof valve sheet 4, and one end of the reinforcing block 5 is matched with the explosion-proof hole 3 to reinforce during welding, so as to improve the strength of the welding position and avoid the explosion-proof valve sheet 4 or the shell 1 from being broken during welding.

[0027] In the embodiment, preferably, the middle part of the inner side of the explosion-proof valve sheet 4 is concave downward to form a groove 401 for pressure bearing, so as to make the explosion-proof valve sheet 4 have more contact area with the gas when the gas is generated in the inner side of the shell 1, thereby providing more impact force to the explosion-proof valve sheet 4 to make the explosion-proof valve sheet 4 break, so that the shell 1 is vented to the outside.

[0028] In the embodiment, preferably, the reinforcing block 5 is annular, so as to have better strength.

[0029] In the embodiment, preferably, the lower surface of the reinforcing block 5 has a chamfer 501, so as to avoid scratching the external object.

[0030] In the embodiment, preferably, the ventilation assembly 2 comprises a first supporting plate 201, a connecting block 202 and a through hole 204, the first supporting plate 201 is arranged at the lower end of the inner side of the shell 1, the connecting block 202 is arranged at both ends of the first supporting plate 201, the ventilation channel is arranged between the first supporting plate 201 and the bottom surface of the shell 1, and the through hole 204 is arranged in the inner side of the first supporting plate 201, so as to better disperse the heat and avoid local concentration of the heat.

[0031] In the embodiment, preferably, the second supporting plate 203 is arranged at the lower surface of the first supporting plate 201, and the second supporting plate 203 is in the shape of “S”, so as to better support the strength.

[0032] In the embodiment, preferably, the cavity is arranged in the inner side of the connecting block 202 along the axial direction.

[0033] In the embodiment, preferably, the material of the shell 1 is steel.

[0034] The working principle and use flow of the utility model: when welding the explosion-proof valve piece 4, the annular reinforcing block 5 is placed at the lower surface edge of the explosion-proof valve piece 4, the explosion-proof valve piece 4 can be avoided from being broken down during welding through the reinforcing block 5, the explosion-proof valve piece 4, the reinforcing block 5 and the shell 1 are fused together after welding, forming trinity, guaranteeing the firmness of the welding position, the lower surface of the reinforcing block 5 has the chamfer 501, avoiding scratching external objects during welding or use, improving the use safety, further, the first supporting plate 201 is arranged at the lower end of the inner side of the shell 1, the inner side of the shell 1 can be ventilated through the ventilation channel and the through hole 204, the heat of the inner side of the shell 1 is evenly distributed, avoiding the local heat concentration, at the same time, the battery in the inner side of the shell 1 can be avoided from being directly damaged when the lower part of the shell 1 is pierced by external objects, improving the strength and safety of the device.

[0035] Although the embodiments of the utility model have been shown and described, it is to be understood that various changes, modifications, substitutions and variations can be made thereto without departing from the principles and spirit of the utility model, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A shell based on a welded reinforcement structure, characterized in that, include: The housing (1) has an explosion-proof hole (3) and a ventilation assembly (2) at the lower inner side of the housing (1). The explosion-proof valve plate (4) is fixed to the inside of the explosion-proof hole (3) by welding; A reinforcing block (5) is provided on the lower surface edge of the explosion-proof valve plate (4), and one end of the reinforcing block (5) is engaged with the explosion-proof hole (3) to reinforce it during welding.

2. The shell based on a welded reinforcement structure according to claim 1, characterized in that: The explosion-proof valve plate (4) has a downward recessed groove (401) on the inner side center to bear pressure.

3. The shell based on a welded reinforcement structure according to claim 1, characterized in that: The reinforcing block (5) is ring-shaped.

4. The shell based on a welded reinforcement structure according to claim 1, characterized in that: The lower surface of the reinforcing block (5) has a chamfer (501).

5. A shell based on a welded reinforcement structure according to claim 1, characterized in that: The ventilation assembly (2) includes a first support plate (201), a connecting block (202), and a through hole (204). The first support plate (201) is disposed on the lower inner side of the housing (1). The first support plate (201) has connecting blocks (202) at both ends that are connected to the housing (1). A ventilation channel is provided between the first support plate (201) and the bottom surface of the housing (1). A through hole (204) is provided on the inner side of the first support plate (201).

6. A shell based on a welded reinforcement structure according to claim 5, characterized in that: A second support plate (203) is provided on the lower surface of the first support plate (201), and the second support plate (203) is "S" shaped.

7. A shell based on a welded reinforcement structure according to claim 5, characterized in that: The connecting block (202) has a cavity extending through its inner side along its axial direction.

8. A shell based on a welded reinforcement structure according to claim 1, characterized in that: The shell (1) is made of steel.

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